Vendor import of compiler-rt trunk r305575:vendor/compiler-rt/compiler-rt-trunk-r305575

https://llvm.org/svn/llvm-project/compiler-rt/trunk@305575

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/sanitizer_common/sanitizer_win.cc b/lib/sanitizer_common/sanitizer_win.cc
index afc3bb0ac678..506e7374a329 100644
--- a/lib/sanitizer_common/sanitizer_win.cc
+++ b/lib/sanitizer_common/sanitizer_win.cc
@@ -131,6 +131,16 @@ void UnmapOrDie(void *addr, uptr size) {
   }
 }
 
+void *MmapOrDieOnFatalError(uptr size, const char *mem_type) {
+  void *rv = VirtualAlloc(0, size, MEM_RESERVE | MEM_COMMIT, PAGE_READWRITE);
+  if (rv == 0) {
+    error_t last_error = GetLastError();
+    if (last_error != ERROR_NOT_ENOUGH_MEMORY)
+      ReportMmapFailureAndDie(size, mem_type, "allocate", last_error);
+  }
+  return rv;
+}
+
 // We want to map a chunk of address space aligned to 'alignment'.
 void *MmapAlignedOrDie(uptr size, uptr alignment, const char *mem_type) {
   CHECK(IsPowerOfTwo(size));